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Sasser S8P1b
Physical Science
Term | Definition |
---|---|
Element | Made up of one type of atom Cannot be broken down byphysical and chemical methods Examples: Oxygen, Nitrogen, Carbon |
Compound | Form when two or moredifferent elements join (bond) together chemically,composition is identical in each sample,can be separated only by chemical methods,properties of a compound are totally different than the properties of the elements that form them |
Mixture | Form when elements and/or compounds are combined physically Properties of a mixture are related to its components Composition varies from sample to sample Can be separated by physical methods Examples of Mixtures: Tea, Perfume, Air, Salad, Beach sand, |
Pure Substance | Fixed composition Distinct properties Cannot be separated into simpler substances by physical methods Can only be changed in identity and properties by chemical methods Properties do not vary one sample to another sample elements and compounds |
Bonded | something that binds, fastens, confines, or holds together. |
Solute | The substance in the smallest amount and the one that DISSOLVES |
Solvent | The substance in the larger amount - it does the dissolving |
Homogeneous Mixture | Solutions) have a uniform distribution. For example: Tea, Perfume, Air |
Heterogeneous Mixture | do not have a uniform distribution. Parts are often visible For example:Salad, Beach Sand,Oil and Vinegar dressing |
Homo- | same |
Hetero- | different |